CVE-2026-43665

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-07-27. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 5.5Exploit: None knownExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

This issue was addressed with additional entitlement checks. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8. A local attacker may be able to determine the legacy VNC password configured for Screen Sharing.

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100CISA SSVC

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.1%
EPSS %ILE
2nd
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

July 27, 2026

Last Modified

July 29, 2026

Advisory Details (2)

Auto-updated Jul 28, 2026
No patch confirmed yet.
generic

About the security content of macOS Sonoma 14.8.8 - Apple Support

https://support.apple.com/en-us/128072
generic

About the security content of macOS Sequoia 15.7.8 - Apple Support

https://support.apple.com/en-us/128071

Vendor Advisories for CVE-2026-43665(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 56× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 138 total refreshes for this CVE.

  1. 2026-09-29 07:49 UTCEG score recompute
  2. 2026-09-29 07:49 UTCGHSA enrichment
  3. 2026-09-28 03:28 UTCEG score recompute
  4. 2026-09-28 03:28 UTCGHSA enrichment
  5. 2026-09-27 13:48 UTCEPSS rescore
  6. 2026-09-26 15:58 UTCEPSS rescore
  7. 2026-09-25 06:32 UTCEG score recompute
  8. 2026-09-25 06:32 UTCGHSA enrichment
  9. 2026-09-23 22:25 UTCEG score recompute
  10. 2026-09-23 22:25 UTCGHSA enrichment
  11. 2026-09-23 17:53 UTCEPSS rescore
  12. 2026-09-22 21:45 UTCEG score recompute
  13. 2026-09-22 21:45 UTCGHSA enrichment
  14. 2026-09-20 20:15 UTCEPSS rescore
  15. 2026-09-20 06:05 UTCEG score recompute
  16. 2026-09-20 06:05 UTCGHSA enrichment
  17. 2026-09-19 05:25 UTCEG score recompute
  18. 2026-09-19 05:25 UTCGHSA enrichment
  19. 2026-09-18 19:28 UTCEPSS rescore
  20. 2026-09-18 02:11 UTCEG score recompute
  21. 2026-09-18 02:11 UTCGHSA enrichment
  22. 2026-09-17 19:31 UTCEPSS rescore
  23. 2026-09-16 14:08 UTCEPSS rescore
  24. 2026-09-16 11:51 UTCGHSA enrichment
  25. 2026-09-15 08:55 UTCEG score recompute
Show 75 more
  1. 2026-09-15 08:55 UTCGHSA enrichment
  2. 2026-09-13 16:47 UTCEPSS rescore
  3. 2026-09-13 16:43 UTCGHSA enrichment
  4. 2026-09-12 16:03 UTCEG score recompute
  5. 2026-09-12 16:03 UTCGHSA enrichment
  6. 2026-09-12 15:01 UTCEPSS rescore
  7. 2026-09-11 15:23 UTCEG score recompute
  8. 2026-09-11 15:23 UTCGHSA enrichment
  9. 2026-09-11 14:53 UTCEPSS rescore
  10. 2026-09-11 09:37 UTCEPSS rescore
  11. 2026-09-10 10:13 UTCEG score recompute
  12. 2026-09-10 10:13 UTCGHSA enrichment
  13. 2026-09-10 09:34 UTCEPSS rescore
  14. 2026-09-09 08:09 UTCEG score recompute
  15. 2026-09-09 08:09 UTCGHSA enrichment
  16. 2026-09-08 22:00 UTCEPSS rescore
  17. 2026-09-08 00:05 UTCEG score recompute
  18. 2026-09-08 00:05 UTCGHSA enrichment
  19. 2026-09-07 16:01 UTCEPSS rescore
  20. 2026-09-06 23:23 UTCEG score recompute
  21. 2026-09-06 23:23 UTCGHSA enrichment
  22. 2026-09-06 13:47 UTCEPSS rescore
  23. 2026-09-05 19:12 UTCEG score recompute
  24. 2026-09-05 19:12 UTCGHSA enrichment
  25. 2026-09-04 12:11 UTCEG score recompute
  26. 2026-09-04 12:11 UTCGHSA enrichment
  27. 2026-09-02 14:12 UTCEPSS rescore
  28. 2026-09-01 13:54 UTCEPSS rescore
  29. 2026-09-01 01:17 UTCGHSA enrichment
  30. 2026-08-31 00:22 UTCEG score recompute
  31. 2026-08-31 00:22 UTCGHSA enrichment
  32. 2026-08-30 19:17 UTCEPSS rescore
  33. 2026-08-30 01:22 UTCEPSS rescore
  34. 2026-08-29 23:41 UTCEG score recompute
  35. 2026-08-29 23:41 UTCGHSA enrichment
  36. 2026-08-28 21:41 UTCEPSS rescore
  37. 2026-08-27 14:25 UTCEPSS rescore
  38. 2026-08-27 12:50 UTCEG score recompute
  39. 2026-08-27 12:50 UTCGHSA enrichment
  40. 2026-08-26 14:46 UTCEPSS rescore
  41. 2026-08-26 12:09 UTCEG score recompute
  42. 2026-08-26 12:09 UTCGHSA enrichment
  43. 2026-08-25 13:49 UTCEPSS rescore
  44. 2026-08-25 11:26 UTCEG score recompute
  45. 2026-08-25 11:26 UTCGHSA enrichment
  46. 2026-08-24 10:38 UTCEG score recompute
  47. 2026-08-24 10:38 UTCGHSA enrichment
  48. 2026-08-23 09:58 UTCGHSA enrichment
  49. 2026-08-22 09:18 UTCEG score recompute
  50. 2026-08-22 09:18 UTCGHSA enrichment
  51. 2026-08-21 23:49 UTCEPSS rescore
  52. 2026-08-21 08:37 UTCEG score recompute
  53. 2026-08-21 08:37 UTCGHSA enrichment
  54. 2026-08-20 22:55 UTCEPSS rescore
  55. 2026-08-20 07:56 UTCEG score recompute
  56. 2026-08-20 07:56 UTCGHSA enrichment
  57. 2026-08-19 17:04 UTCEPSS rescore
  58. 2026-08-19 07:16 UTCGHSA enrichment
  59. 2026-08-18 06:29 UTCEG score recompute
  60. 2026-08-18 06:29 UTCGHSA enrichment
  61. 2026-08-17 13:47 UTCEPSS rescore
  62. 2026-08-17 05:48 UTCEG score recompute
  63. 2026-08-17 05:48 UTCGHSA enrichment
  64. 2026-08-16 14:56 UTCEPSS rescore
  65. 2026-08-16 04:50 UTCGHSA enrichment
  66. 2026-08-15 04:10 UTCEG score recompute
  67. 2026-08-15 04:10 UTCGHSA enrichment
  68. 2026-08-15 01:30 UTCEPSS rescore
  69. 2026-08-14 03:30 UTCEG score recompute
  70. 2026-08-14 03:30 UTCGHSA enrichment
  71. 2026-08-13 22:00 UTCEPSS rescore
  72. 2026-08-13 02:50 UTCEG score recompute
  73. 2026-08-13 02:50 UTCGHSA enrichment
  74. 2026-08-12 13:51 UTCEPSS rescore
  75. 2026-08-12 02:10 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-43665?
CVE-2026-43665 is a medium vulnerability published on July 27, 2026. This issue was addressed with additional entitlement checks. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8. A local attacker may be able to determine the legacy VNC password configured for Screen Sharing.
When was CVE-2026-43665 disclosed?
CVE-2026-43665 was first published on July 27, 2026, with the most recent update on July 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43665 actively exploited?
CVE-2026-43665 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (2nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-43665?
CVE-2026-43665 has a CVSS v3.1 base score of 5.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-43665?
No fix for CVE-2026-43665 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-43665 are linked in the Vendor Advisories panel on this page.

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